Home / 31,421,639.76-43,361,183.17-18,191,374.52

Finding the Fourth Proportional to 31,421,639.76, 43,361,183.17 and 18,191,374.52

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Solution

The fourth proportional to 31,421,639.76, 43,361,183.17 and 18,191,374.52 is: 25,103,703.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,421,639.76 : 43,361,183.17 = 18,191,374.52 : x
  2. Step 2: Convert to fraction form
    31,421,639.76/43,361,183.17 = 18,191,374.52/x
  3. Step 3: Cross multiply
    31,421,639.76x = 43,361,183.17 × 18,191,374.52
  4. Step 4: Simplify right side
    31,421,639.76x = 788,799,522,738,715.38
  5. Step 5: Solve for x
    x = 788,799,522,738,715.38/31,421,639.76
  6. Step 6: Final answer
    x = 25,103,703.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.